Nail polishing device



FIG. 1 is a front elevational view of a nail polishing device showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines in the figures are for the purpose of illustrating portions of the nail polishing device, which form no part of the claimed design. 

CLAIM The ornamental design for a nail polishing device, as shown and described. 